Device for drawing warp threads into reeds

ABSTRACT

1,096,324. Threading reeds. ZELLWEGER Ltd. Oct. 28, 1965 [Jan. 14, 1965], No. 45678/ 65. Heading D1M. In Figures 1 and 2 the reed threading device 3 has openings 9, 10 so that the threads may be drawn-in when the healds are either above or below the reed. In Figs. 3 and 4 (not shown) a guide (15) is reversible for the same purpose. In Figs. 5 and 6 (not shown) the whole device 3 is rotable about a pivot (26) and in Fig. 7 (not shown) it is detachably connected to a member (29).

Oct. 24, 1967 A. BAUMGARTNER ETAL 3,348,282

DEVICE FOR DRAWING WARP THREADS INTO REEDS Filed Jan. 14, 1966 2 Sheets-Sheet 1 Fig. 1

Oct. 24, 1967 A. BAUMGARTNER ETAL ,3

DEVICE FOR DRAWING WARP THREADS INTO REEDS 2 Sheets-Sheet 2 Filed Jan. 14, 1966 mm ,m. nwm m 7&8 9% 4 l Wm United States Patent 3,348,282 DEVICE FOR DRAWING WARP THREADS.

INTO :REEDS August Baumgartner and Walter Gegenschatz, Uster,

Switzerland, assignors to Zellweger, Ltd., Uster, Switzerland Filed Jan. 14, 1966, Ser. No. 520,619 Claims priority, application Switzerland, Jan; 14, 1965,

8 Claims. -(Cl. 28-44) ABSTRACT OF THE DISCLOSURE reeding hook.

This invention relates to weaving devices and more particularly to improvements in a device for drawing warp threads into reeds.

Known attachments for drawing warp threads into reeds are designed in such a way that they operate with the reed inclined downwardly in front of the machine operator while the harness with the warp thread already drawn through its heddles and ready to be drawn into the reed, is suspended behind the reed and at some distance above it. In this case, the machine operator takes one warp thread after the other and guides it downwardly into the inlet openings of the drawing-in attachment. The drawing-in attachment itself then takes up the warp thread offered to it and, with the aid of a hook, draws it obliquely downward into a dent of the reed.

In cases where warp threads have to be drawn directly into the loom, which may be necessary, for example,

3,348,282 Patented. Oct. 24, 1967 baulk of the reed;

when a reed is damaged and has to bereplaced by another,

the known drawing-in attachments are impractical and difficult to operate. In this case, the eyes of theheddles are located beneath the reed, with the result that each warp thread to be drawn in must be fetched from below, out of the field of vision of the operator, and guided toward the inlet hole of the drawing-in attachment over the reed. This is a troublesome and complicated operation.

According to the present invention, a drawing-in device is provided with a guide member providing inlet openings or entrances to the reed which face the upper and lower baulks of the reed. These openings enable the warp threads to be drawn-in in such a way as to be conveniently offered both downwardly and upwardly to the drawing-in attachment, thereby greatly facilitating the drawing-in operation.

It is therefore an object of the present invention to provide a drawing-in attachment for drawing warp threads into reeds which is more versatile and efiicient than devices of a similar nature known heretofore.

It is another object of the present invention to provide a drawing in attachment of the type disclosed herein which is selectively adjustable as to position so as to be capable of drawing-in from either the upper or lower side of the reed.

It is a further object of the present invention to provide a drawing-in attachment of the type disclosed herein presently used apparatus of various configurations.

These and other objects, features and advantages of the which is of simple construction and easily adaptable to instant invention will become more apparent from the following detailed description of the invention when taken FIGS. 3 and 4 show a drawingin attachment provided with oneinlet opening which' is formed in such a way that it can alternately; face the upper and. lower baulksrof the reed;

FIGS. 5 and 6 show a drawing-in attachmentprovided with one inlet opening whichis non-variable relative. to the drawing-in attachment, mounted ,on, a frame, the upper section of which can be pivotedabout itslongitudinal axis and locked in two positions facing each other at an angle of approximately and FIG. 7 shows a drawing-in attachment which-can be brought into two symmetrical positions relative tothe reed, on a non-pivotable frame.

The device shown in FIGS. Land 2 comprises a support frame 1 for the drawing-in attachment along, whose supporting tubes 2 the drawing in attachment can moveon rollers 4 driven by conventional drive means. When it rolls, the drawing-in attachment 3 moves a reeding hook 5 in a reciprocating manner by any known means through the dent of a reed 6 to catch the threads 7 and draw them into the reed. In order-that warpthreads 7 may be rapidly and easily pushed onto the hook 5, the guide. member 8 is provided, which contacts the successive threads as the attachment 3 moves across andguides them onto. the hook 5. Both the reeding hook 5 and the guide members 8 are symmetrically designed so that they form complementary surfaces with the result that identical inlet openings 9 and 10 are formed which facetoward the upper and lower baulks, respectively, of thereed 6.

As faras the procedure of operation of thearrangement illustrated in FIG. 1 is concerned, a harness .11 is suspended in a somewhat elevated position relative to the reed, which may be done, for example, during drawing-in of the warp threads into the reed, by means of a reaching machine after the warp threads have been drawn into the harness. In this case, the warpthreads 7 are guided one at a time intothe inlet opening 9, taken up by the lower hook of the reeding hook 5 and drawn through the dent of the. reed. When all of the threads have been drawn into the reed, the reed is pivoted upwardly, in a clockwise direction, as taken in FIG. 1, to its proper position adjacent the heddles.

The same device as shown inFIGURE l is illustrated in FIGURE 2, the only difierence being that, in this case, the frame for mounting the device is not provided on the floor; instead, the device is suspended on a separate supporting arm 12 from the two ends of the harness by means of a support hook 13. In this case, the warp threads 14 travel upward and have to be introduced into the inlet opening 10. It is therefore possible by means of the attachment shown in FIGS. 1 and 2 to feed the warp threads both upward and downward to the reeding hook without any need for re-arrangement.

FIGS. 3 and 4 illustrate different designs for the guide member 8 from that shown in FIG. 1. The guide member 15 is mounted on a support 16 rigidly connected to the drawing-in attachment 3. Since the support 16 and reeding hook 17 are positioned symmetrically relative to the reed, the guide member 15 may be alternately placed in the positions shown in FIGS. 3 and 4 by merely reversing the position of the guide on the'attachment 3. In this way, the warp threads 18 may again be introduced upward or downward into the reeding hook, as is the case with the arrangement shown in FIGS. 1 and 2. The attachment shown in FIGS. 3 and 4 has the advantage that the guide member is not quite so heavy with the result that the attachment is easier to handle.

FIGS. and 6 illustrate a drawing-in attachment 19 which comprises a reeding hook 20 having only one point. Accordingly, the guide member 21 is designed in such a way thatit is only effective on one side and defines one inlet opening 22 for the thread to enter the reed. The drawing-in attachment as a whole is displaceable along supporting tubes 24 on rollers 23. In this case,- at least three such rollers 23 are required in order to guide the attachment 19 along the supporting tubes 24 in such a way that it cannot be derailed therefrom. The two 'support ing tubes 24 are fixed at both ends of the frame to supports 25 which are so mounted on the feet 27 of the fiame as to be rotatable about pivots 26. A known typeof locking mechanism of any conventional configuration (not 'shown) enables the supports 25 to be locked in at least two positions facing each other at an angle of approximately "180 on the feet27. In the position shown in FIG. 5, the warp threads are guided downward over the reed and introduced upward into'the outlet opening by the guide 21. If the supporting tubes 24 together with their supports 25 are turned through 180 into the position shown in FIG. 6, the warp threads are guided upward over the reed and downward into the inlet opening 22 by the guide member 21, this time from the other side of the frame, Since, in the arrangement shown, the drawing-in attachment 19 remains on the upper part of the frame as it pivots, the attachment must be guided on the supporting tubes in such a way that it cannot be derailed therefrom. Finally, FIG. 7 shows a drawing-in attachment 28 which only differs from the attachment shown in FIG. 5 in that it is releasably connected to the frame 29 by means of a wing nut 30 so as to permit rotation of the attachment about a transverse axis. In this case, a groove 31 in the drawing-in attachment 2S enables the attachment to be be fixed in two positions facing each other at an angle of 180. Under these circumstances, it is no longer necessary for the supporting tubes 32 to be pivotally mounted. They can in fact be directly mounted in stationary or fixed feet 33. The embodiment shown in FIG. 7 enables warp threads to be drawn-in exactly the same way as in the embodiment shown in FIGS. 5 and 6.

While we have shown and described several embodi rnent's in accordance with the present invention, it is understood that thesame is not limited thereto but is susceptible of numerous changes and modifications as known to a person skilled in the art, and we therefore do not wish to be limited to the details shown and described herein,

but intend to cover all such changes andmodifications as are encompassed by the scope of the appended claims.

We claim: t t i 1. In a weaving machine having a reed and heddles, a device for drawing warp threads into said reed compris ing a drawing-in attachment including a reeding hook and means for reciprocating said reeding hook in response to indexing movement of said attachment, support means for supporting said drawing-in attachment adjacent said reed between said reed and said heddles for movement parallel to said reed with reeding hook extending during a portion of its stroke through a dent in said reed, the improvement essentially consisting of guide means supported on said drawing-in attachment forming at least one inlet opening for the warp threads facing one of the upper and lower baulks of the reed for guiding said warp threads individually ontosaid reeding hook.

2. A device for drawing warp threads into a reed as defined in claim 1 wherein said guide means forms first and second inlet openings facing the upper and lower baulks of the reed, respectively.

3. A device for drawing warp threads into a reed as defined in claim 2 wherein said reeding hook is provided with two hook portions facing, respectively, the upper and lower baulks of the reed. 4. A device for drawing warp threads into areed'as defined in claim ,1 wherein said guide means provides only one inlet opening for the warp threads and is removably supported on said drawing-in attachment so as to be positionable with said inlet opening facing either of the upper and lower baulks of said reed.

S. A device for drawing warp threads into a reed as defined in claim 4 wherein said support means includes a lower support base portion and an upper guide portion, said upper guide portion being pivotable on said lower support base portion about an axis parallel to said reed so as to selectively position said inlet opening facing at least one of the b-aulks of said reed.

6. A device for drawing warp threads into a reed as defined in claim 5 wherein the upper guide portion of said support means is provided with a pair of parallel rail members, said drawing-in attachment being supported between said rails by a plurality of wheels engaging with the facing surfaces of said rails. p

7. A device for drawing warp threads into a reed as defined in claim 4 wherein said drawing-in attachment is mounted on said support means for pivoting movement about an axis transverse'to said support means and said reed so as to selectively position said inlet opening facing at least one of the baulks of said reed.

8. A device for drawing warp threads into a reed as defined in claim 7 wherein said support means is provided with a pair of rail members, said drawing-in attachment being supported between said rails by a plurality of wheels engaging with the facing surfaces of said rails.

References Cited UNITED STATES PATENTS ,LOUIS K. RIMRODT, Primary Examiner.

MERVIN STEIN, Examiner; 

1. IN A WEAVING MACHINE HAVING A REED AND HEEDLES, A DECIVE FOR DRAWING WARP THREADS INTO THE SAID REED COMPRISING A DRAWING-IN ATTACHMENT INCLUDING A REEDING HOOK AND MEANS FOR RECIPROCATING SAID REEDING HOOK IN RESPONSE TO INDEXING MOVEMENT OF SAID ATTACHMENT, SUPPORT MEANS FOR SUPPORTING SAID DRAWING-IN ATTACHMENT ADJACENT SAID REED BETWEEN SAID REED AND SAID HEDDLES FOR MOVEMENT PARALLEL TO SAID REED WITH REEDING HOOK EXTENDING DURING A PORTION OF ITS STROKE THROUGH A DENT IN SAID REED, THE IMPROVEMENT ESSENTIALLY CONSISTING OF GUIDE MEANS SUPPORTED ON SAID DRAWING-IN ATTACHMENT FORMING AT LEAST ONE INLET OPENING FOR THE WARP THREADS FACING ONE OF THE UPPER AND LOWER BAULKS OF THE REED FOR GUIDING SAID WARP THREADS INDIVIDUALLY ONTO SAID REEDING HOOK. 